James E. Goldman is Principle Author and currently Professor and Assistant Department Head for Telecommunications and Networking Technology at Purdue University. An award-winning teacher, he is the only faculty member in the history of the School of Technology to win all three school-level teaching awards. He is author of bestselling textbooks, including Applied Data Communications: A Business-Oriented Approach, 2/e (Wiley, 1998) and Client/Server Information Systems: A Business-Oriented Approach (Wiley, 1999). He maintains an active consulting practice and is a Microsoft Certified Systems Engineer. Phillip T. Rawles is Co-author and Assistant Professor of Telecommunications and Networking Technology at Purdue University. His primary areas of interest are network systems administration, enterprise network management, and network simulation and optimization. He has been involved in developing or significantly redeveloping courses at Purdue, mainly in local area networking, systems administration, and enterprise network management.